Bright yellow pinalite, Brent Thorne specimen and photograph

Pinalite is a mineral discovered in 1989. It was first found at the Mammoth-St. Anthony Mine, near Tiger, in Pinal County. The only other location where it has been found is in the Grand Reef Mine, Klondykpinalite Brent Thorne specimen and photoe, Graham County.pinalite Harvey Jong specimen, Joe Ruiz photograph

Pinalite is a a lead tungstate chloride mineral.

Formula: Pb3WO5Cl2

Crystal System: Orthorhombic

Color: Bright to pale yellow, golden, orange

Luster: Adamantine

Specific Gravity: 7.78

 

[top and left: Bret Thorne specimens and photos; right: Harvey Jong photograph, Joe Ruiz specimen]